Hairpin



C. A. DIES.

HAIRPIN.

APPLICATION FILED JUNE23, 1916.

1,377,408. t nt d May 10, 1921.

STATE CHARLES ALBERT DIES, OF CHICAGQ, ILLINOIS.

HAIRIPIN.

To all whom it may concem.

Be it known that I, CHARLES A. DIES, a citizen of the United States,residm at Chicago, in the county of Cool; and of Illinois, have inventedcertam new and useful Improvements in Hair-pins, of which the followingis a description.

My invention relates to that class of devices used in dressing ladieshair and commonly known as hair pins.

The object of my invention is to provlde a devic of the kind describedwhlch when inserted in the hair will retain its position until it isdesred to remove it and also one by means of which the hair may besecured a and firmly retained in its desired position and so obviate theinconvenience and annoyance caused by the falling out of the pins andconsequent derangement of the hair.

To this end my invention consists in the novel construction, arrangementand combination of parts herein shown and descrlbed, and moreparticularly pointed out in the claims.

In the accompanying drawings wherein like or similar referencecharacters indicate like or corresponding parts:

Figure 1 is a side elevation of my improved hair pin.

Fig. 2 is an edge elevation of the same. Fig. 3 is a section takensubstantially on line 3-3 of Fig. 1.

Fig. 4 is a side elevation of a slightly modified form of myimprovement.

Fig. 5 is a similar view of another modified form.

In the form shown-in Figs. 1, 2 and 3 my improvement comprises a member1 formed of wire or other suitable material, bent substantially at itscenter to form a U shaped pin with arms of substantially uniform length.As shown a portion 2 of the arms at the closed end of the pin aresubstantially parallel and lie in a common plane while the next adjacentportion of the arms are bent to form a helix about a common center 3 anddiverge from each other toward the free ends of the arms to the point 5,the next adjacent portion 6 of the arms while continuing the helicalcurve about the I center line 3 converge -regularly toward the free endsof the arms whil the end portion 8 of the arms still continuing thehelical curve again diverges to the end of the arm so that in twistingthe pin into the hair the Specification of Letters Patent.

tate

hair tends to force the free en of the arms apart so that the parts 6will assume a position substantially parallel to each other when inservice and resiliently engage the hair positioned between the arms tohold the pin and the engaged hair in position.

When thus constructed it is obviously desirable that the bending actionwhen inservice should occur as far as possible in-the parts 4 of thepin'which being of'considerable length permits a free resilient movementof the parts 6 and 8 without permanently distorting the pin. To insurethis action the member 1 is preferably flattened as shown near theclosed end of the pin sub- Patented May 10, 1921. Application filed June28, 1916. Serial No. 105.472.

2 of the arms a slightly tapering form laterally as shown.

In the preferred construction also a laterally projectlng bead 9 isprovided on both sides of the pin at the outer margin of its closed endpreferably extending entirel across the end of the pin thus furtherstill ening this portion of the member and provide a convenient grip forthe fingers in inserting or removing the pin from the hair. In this formalso the pitch of the helical curve is reduced slightly toward the; freeend of the arms to still further increase the holding efi'ect of the pinand prevent its disengagement from the hair when in service.

. i In the form shown in Fig. 4 my improved hair pin is formed in allrespects substantially the sameas shown in Figs. 1 to 3'with the singleexception that in this form the section 11 of the arms corresponding tothe section 6 in the form hereinbefore described the arms aresubstantially parallel instead of converging. In this form when inservice the arms are slightly divergent or spread toward their free endsand while forming an excellent device for securing the hair in positiondoes not retain its place in the hair as satisfactorily as the formhereinbefore described.

In the formshown in Fig. 5 my improved of the helical curve in the formshown in Fig. 5 remains constant throughout its entire length instead ofdecreasing toward the free end of the arms. The general utility andholding power of this form of my device is very nearly, if not uite assatlsfactor as the form shown in B igs, 1 to 3.

Iiaving thus described my improvement it is obvious that variousimmaterial modifications may be made in my device without departing fromthe spirit of my invention, hence I do not wish to be understood aslimiting myself to the exact formor construction shown.

What I claim as new and desire to secure by Letters Patent is:

1. A hair-pin comprising a U shaped memher having arms of substantiallyuniform length, each curved helically about a common central axis, saidarms gradually approaching each other to a point adjacent their freeends and thereafter diverging slightly to their extremities, said memberbeing flattened at the closed end of said pin parallel to the commonplane ofsaid arms and having a laterally projecting bead on both sidesof the pin at the outer margin thereof.

2. A hair-pin comprising a U shaped member having arms of substantiallyuniform length, each curved helically about a commoncentral axis, saidarms gradually approaching each other to a point adjacent their freeends and thereafter diverging slightly to their extremities, said memberbeing flattened near the closed end of said pin parallel to'the commonplane of said arms and having a laterally projecting bead at the outermargin of the closed end of the pm.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

CHARLES ALBERT DIES.

Witnesses:

- F. F. VA'rnn,

BLANCHE CHALMERS.

